Low: apache: Fixes inconsistent formatting
Low: apache: Refactor apache_stop code to reduce complexity and indentation
High: apache: Attempt graceful stop before -TERM signal

Attempt graceful stop first with WINCH signal.
https://httpd.apache.org/docs/2.2/stopping.html

Resolves: rhbz#952716
Low: apache: Warn user if status url can not be accessed during monitor (when monitor is not probe)
Fix: apache: Properly check meta_timeout variable during graceful stop
Merge pull request #265 from davidvossel/apache_cleanup

 apache agent improvements